Pipe-joint for double pipes.



w. M. WHITE. PIPE JOINT FOR DOUBLE PIPES.

APPLICATION FILED yJAN. 14. I9|4 Patented Feb. 27,1917.

. IN VEN TOR WILL/AM M. W// 71 centric there v eter Slightly le. of the m (er uhsf..

WILLIAM M. WHITE5 I-IOBDKE'N, NEW JERSEY.

`FIIPIB-JOINT FOR DOUBLE PIPES.

Speciation of Letters Patent.

Patented Feb. 1917.

Application led January 145.19.14. Serial No. 812,018.

Tf all whom t may @0:10am s Be it ic'rmwn that I, WILLIAM M'. W11TTE, :L citizen ULF the United Sintes, :uid resident nl lloimliein. (fm'my .fuf llsxdsumhnd State of Nw' Jvrsuy. have ih vntefl Qertnfin new and lxs-felle?. .lhxpimwelxnients m Fim-Joints for Double Pipes, mi? which the is u. specificalzinny My inventiun relates to improved pipe oints mln'pte'cl 'for connecting twq concer?.i tric pipes for use in' refr grating impari.; tus m' the like? whew it is desirable that the liquid lh im .'mfled ,sh-.ill be brought celnsely as pfmsihle inta Contact' withfth pipe containing the cooling fluid. This relai-ion in: best obte-@ined by tha;cmiamifric. iarrsx-rigmei nl tlm pipes ih which .the maling fluid pri'erablg rircuhathd through tlm inner tube while bhe iluirllr la@ cooled circulates through the annular chairI ,nel formed between. the, inner and hehuter tube. The g'eater difficulty encountered in this cmlstrmftion to seiiisfrztm'ily seal, tha' )hints between me pipef :asin-11am #muh conduit continumus ami withmit-anjf leakage. from one mriaiiluit to the other. Thsa Gbjec; ai i? T irfnioh .is to 5:.en1'x1pl-ish thaise mail?. ii.. simple pipe joint @01m sn'uetioh whiislriit @The same ims will per mit. the fimihlsf pim?. ima to he emily sind folio Ying tion in aurzmnpfr y i'fiwm Figur@ l. i f the @i um struction, rr il? im, s... and liig. repieficms rr'fheimi nl? mnh nl 'the cfs. .Y ings srt; Sil-2 :if Fig'. i..

l -a m;rlhyg m thra'zii .l represents i sectimi of this imfm' mh@ or pipe which may a (if any rquirefl lsngth, und represents th fsolri.=.s11 hg mitm* pipe iwrahgerl rmiwiixh i@ form im annular channel Ur cmiduil zilmiii. {the-inner mbe.' lh urdr to maintain the. c@ nitric relation of h@ tubes ai sume if ne. giro duce continuum.' mnduii@ my im'igzfx wtholt lealmg@ heieharwefeh, l imite sea-w eraly lenglm rif @ipsa by meals of 'joins m* unions amil Qlhriwsz Suh'iihiiialljv. as indi-- called in Fig. l of h@ ii. frs. The jeini or union prelierably wi what tially Similar il: iggin fram-.1, m1

ahfarehrwtegg wich@ mit.

'faced off, so that two such castings; may be secured together within gasket 5 therebetween, to form a complete union adjacent f length of pipes Un the opposite. sid@ from the gasket fare, the (rusting in the form.

shawn, is provided with zx central annular boss which is;` countermnml al; 6 to receive :md snugly fit he mitsicles of the inner pipe. The bottom Ql'- this' omnitel-bm@ is; preferably slill' further bored out to form nn annular groove which is adapted to facilitate the inserion and. manipulation of :f1 tool :For @xp-.indi ha imi m th inner tube l and hszfehy duff: Vahsiixlutely tight joint hat-Wem, thv inn. Ubi-f and the caStlng. AS prmrmisl/ fl., thi-y hui@ at. R is 'preferf .YU L

'fzlfly if leer um 'eier Uf han i uhsmhially with i v @hat heftvfmi; aber of the 3mm groove; 7 tha@ adapta?. to pre-v Halli@ threaed ai; if

nally hrseaclef ends @f hh@ mbar pipi, 2

www? :n ighi jm lhs, @listing is im hariw: shammi. fn pipas. rrmtimimr ihr, @gif f im .n v

Q, G, s l on, le llmiiig; 'fram ih@ holla-hi ai' 4 Vdeed cuhtrliaore through the harig@ between the wh cmmterhoms mltsid@ of the @cimiterrmm G arid thrnugh the. galmtface of 'Liz @fisting {S Fig., il), tlm gasket 5 biaM ing prmfidefl weii :gorrsponding openings. 'The flung mi? th@ @mating is provided with suitable lmless itl'lrmgh which blts 12 may der the an ha passgd. fur Securing adjacent sections to Vgehi-rr upon the interposed gasket, as indicatie. in the fmwin in assembling the double pipe sections lieinner mh@ is prefraibly mit to the length required and tixescped into the correspondl ing unter tube Vr has been properly @Umd l di e' e and then one of the i... L. 3 is mur me' on each end of MM 'Hu nl'dlmges :it 8 being PM T em mC displacement of the in- Q rev ner trhe. ..-a 'length of 4the inner tube nl' beimeaii @hice pipe and' 'El W1 should preferably be such that the ends shall not extend beyond the annular grooyes 7 Preferably, after the castings have been screwed on to the outer tube as describedv a suitable tube is inserted and the ends of the linner tube are expanded to produce a tight joint' so that there can be no leakage between' the inner conduit and the annular Aing channels of theadjacent casting, vthuis rendering the annular conduit continuous while the registry of the holes at 8 makes the inner tube conduit continuous. 9

`For changing the direction of the pipes I provide a 'special elbow casting such as illus"- trated at 13 in Fig. 1. This'is simply'a doubled flanged casting, the faces of the flan being. at an angle of 90 or other suitag angle, as required. The tubular connection between the two Hanges has-abore lcorresponding with the bore of the inner tube which is surrounded by segmental channels 15 corresponding with the channels 1l of thev castings 3.I Thus with my improved joint'or-vunion, AI am ena-bled' to produce a double. ipe system in which the fluid in one consult is in the closest possible relation to that inthe other conduit without the possibility of leakage from one to the other when the several sections are properly secured together.

It will be understood that various modiications in the specific details of construction may be made without departing from the spirlt and scope of my invention as set forth in the accompanying claim. `Iclaim:

In a pipe joint for double pipes, the combination with -an inner pipe 'and a concentric outer pipe of a joint member consisting of a lia-nge and an integral annular boss, the face of the memberopposite said .boss being in a planelat right an les to theaxis of- Said boss, said member eng provided with a hole axially through said boss, the

boss being counterbored at two different ydiameters, the smaller counterbore bei'n"` adapted to fit` the innerv tube, whiletlie-` Y.

larger yeounte'r'bore 'is internally wltnesses.

WILLIAM M. WHITE.v Witnesses: JOHN lA. FERGUSON,

FRED A. KLEIN.

threaded andi`- adaptedto receive thel threaded end of the 1 louter pipe,

pipe whereby a 

